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Automotive Malleable Cast Iron vs. C71500 Copper-nickel

Automotive malleable cast iron belongs to the iron alloys classification, while C71500 copper-nickel belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is automotive malleable cast iron and the bottom bar is C71500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 70
52
Tensile Strength: Ultimate (UTS), MPa 350 to 720
380 to 620

Thermal Properties

Latent Heat of Fusion, J/g 260
230
Melting Completion (Liquidus), °C 1410
1240
Melting Onset (Solidus), °C 1370
1170
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 41
28
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
41
Density, g/cm3 7.6
8.9
Embodied Carbon, kg CO2/kg material 1.5
5.1
Embodied Energy, MJ/kg 20
74
Embodied Water, L/kg 45
280

Common Calculations

Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 13 to 26
12 to 19
Strength to Weight: Bending, points 14 to 24
13 to 18
Thermal Diffusivity, mm2/s 11
7.7
Thermal Shock Resistance, points 9.9 to 21
12 to 20

Alloy Composition

Carbon (C), % 2.2 to 2.9
0
Copper (Cu), % 0
63.5 to 70.6
Iron (Fe), % 93.6 to 96.7
0.4 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.15 to 1.3
0 to 1.0
Nickel (Ni), % 0
29 to 33
Phosphorus (P), % 0.020 to 0.15
0
Silicon (Si), % 0.9 to 1.9
0
Sulfur (S), % 0.020 to 0.2
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5